Run latest nightly clippy

Also runs clippy on the tests and updates the CI accordingly

substrate/node/src/chain_spec.rs

@@ -11,7 +11,7 @@ use serai_runtime::{
 pub type ChainSpec = sc_service::GenericChainSpec<GenesisConfig>;
 
 fn insecure_pair_from_name(name: &'static str) -> Pair {
-  Pair::from_string(&format!("//{}", name), None).unwrap()
+  Pair::from_string(&format!("//{name}"), None).unwrap()
 }
 
 fn account_id_from_name(name: &'static str) -> AccountId {

substrate/node/src/command_helper.rs

@@ -90,6 +90,6 @@ pub fn inherent_benchmark_data() -> Result<InherentData> {
   let mut inherent_data = InherentData::new();
   sp_timestamp::InherentDataProvider::new(Duration::from_millis(0).into())
     .provide_inherent_data(&mut inherent_data)
-    .map_err(|e| format!("creating inherent data: {:?}", e))?;
+    .map_err(|e| format!("creating inherent data: {e:?}"))?;
   Ok(inherent_data)
 }

substrate/tendermint/client/src/block_import.rs

@@ -121,7 +121,7 @@ where
       return Ok((block, None));
     }
 
-    self.check(&mut block).await.map_err(|e| format!("{}", e))?;
+    self.check(&mut block).await.map_err(|e| format!("{e}"))?;
     Ok((block, None))
   }
 }

substrate/tendermint/client/src/lib.rs

@@ -38,7 +38,7 @@ const PROTOCOL_NAME: &str = "/tendermint/1";
 pub fn protocol_name<Hash: AsRef<[u8]>>(genesis: Hash, fork: Option<&str>) -> ProtocolName {
   let mut name = format!("/{}", hex::encode(genesis.as_ref()));
   if let Some(fork) = fork {
-    name += &format!("/{}", fork);
+    name += &format!("/{fork}");
   }
   name += PROTOCOL_NAME;
   name.into()

substrate/tendermint/machine/tests/ext.rs

@@ -44,7 +44,7 @@ impl SignatureScheme for TestSignatureScheme {
 
   #[must_use]
   fn verify(&self, validator: u16, msg: &[u8], sig: &[u8; 32]) -> bool {
-    (sig[.. 2] == validator.to_le_bytes()) && (&sig[2 ..] == &[msg, &[0; 30]].concat()[.. 30])
+    (sig[.. 2] == validator.to_le_bytes()) && (sig[2 ..] == [msg, &[0; 30]].concat()[.. 30])
   }
 
   fn aggregate(sigs: &[[u8; 32]]) -> Vec<[u8; 32]> {
@@ -96,6 +96,7 @@ impl Block for TestBlock {
   }
 }
 
+#[allow(clippy::type_complexity)]
 struct TestNetwork(u16, Arc<RwLock<Vec<(MessageSender<Self>, StepSender<Self>)>>>);
 
 #[async_trait]